Mobile app - Help from someone living in Japan

[neverbirth2848]

Hello, I've been lately using mobile redemption apps where I can obtain points that later can be exchanged into gift cards from multiple services. I've been able to purchase a few cheap books so far, and saved enough points to get one a bit more expensive, however I'm facing a problem right now, most of my points are in this app:

https://itunes.apple.com/jp/app/jiageru ... 16977?mt=8

And when I tried to get my gift cards I've found out it requires to receive a SMS with a validation code for the first time:

認証は初回のみです。
あなたの電話番号が第三者に開示されることはありません。利用規約をご確認のうえ、ご入力ください。
利用規約を確認する
-----SMS認証の流れ-----
１．利用規約に同意のうえ、電話番号を入力し「次へ」をタップ
２．入力した電話番号あてにＳＭＳメールが届きます。
３．届いた４桁の認証番号を30分以内に入力します。

I guess the SMS is free, and as far as I've checked, it doesn't seem to add you to any subscription list, so I wonder if anyone residing in Japan would be kind enough to receive the SMS for me.