TRAVEL eSIM FOR INTERNATIONAL SHOP
Important — this is an extension-only product. It is for customers who are already using one of these plans:
- CALENDAR 6-Month Prepaid plan (Rakuten / au / international roaming, physical SIM)
- CALENDAR 1-Year Prepaid plan (Rakuten / au / international roaming, physical SIM)
- CALENDAR 6-Month Prepaid eSIM (Rakuten / au / international roaming, SMS receive)
- CALENDAR 1-Year Prepaid eSIM (Rakuten / au / international roaming, SMS receive)
We cannot extend or transfer any other product, or a SIM from another provider.
Deadlines we are currently accepting
| Validity ending |
Order and payment must be complete by |
| End of November 2026 |
Monday 16 November 2026, 14:00 JST |
| End of December 2026 |
Tuesday 15 December 2026, 14:00 JST |
The general rule is 14:00 JST on the 15th of the month in which your validity ends; if the 15th is a weekend, a public holiday or one of our company holidays, the deadline moves to 14:00 JST on the next business day.
Specifications
| Applies to |
Physical SIM and eSIM purchased from this store |
| Extension term |
12 months |
| Monthly data |
Choose the allowance that matches your current plan: 3GB, 7GB or 30GB per month |
| 6-month plans |
6-month plan holders also use this 12-month extension; there is no 6-month extension. |
| Required information |
Have the MSN (phone number) of your SIM ready when ordering. |
Please check your current plan before ordering. Select the monthly data allowance that matches the plan you are extending.
Important information
Conditions — please read before applying
- An extension can only be purchased by a customer who bought the CALENDAR Rakuten prepaid SIM or eSIM from our store. If the name on the extension order does not match the name on the original purchase, we cannot process it.
- The SIM or eSIM being extended is prepaid, and the format cannot be changed — a physical SIM stays a physical SIM, and an eSIM stays an eSIM.
- This extends the validity period only. The data plan cannot be changed.
- Extensions are accepted in 12-month units, one line at a time. We cannot accept an extension longer than 12 months.
-
One line per order. Several lines in a single order cannot be accepted.
- This page is for extensions only. New orders cannot be placed here — if you are buying for the first time, please order from the individual product pages.
- Payment is by credit card or Amazon Pay only. Bank transfer is not available for this product.
- The extension is applied remotely, so you keep using the SIM you already have. Nothing is shipped.
How to apply
1. What you need
- The MSN (phone number) of your SIM. You will find it printed on the card holder your SIM came on, or in your device settings.
- If it is not provided, we may have to cancel your order.
2. The deadline
- Your order and payment must both be complete by 14:00 JST on the 15th of the month in which your validity expires.
- If the 15th falls on a weekend, a public holiday or one of our company holidays, the deadline moves to 14:00 JST on the next business day.
- Extension requests that arrive after the deadline will be cancelled.
3. After we accept it
- Once the extension has been processed we email you the new validity period. Please check it.
Notes
- We may contact you to confirm which line you want extended, so please make sure the email address you register at checkout is correct.
- Nothing is shipped, but please order with an address and contact details that can reach you.
- The price of this product may change in line with SIM procurement costs. If the price goes up, customers who have already purchased are never charged anything extra.
