Dont worry, everything have their own solution. Check this out: https://www.tiktok.com/@findcmarketing/video/7323411580480261384?is_from_webapp=1&sender_device=pc&web_id=7171646603547657733
You must scan the QR code, click continue to attach the screenshot (it is the only proof of payment) and you can complete the purchase.
Dont worry, everything have their own solution. Check this out: https://www.tiktok.com/@findcmarketing/video/7323411580480261384?is_from_webapp=1&sender_device=pc&web_id=7171646603547657733