I'm no sure if this applies to your problem but I have "self" resolved my 1 sen voucher problem.
My last purchased was using Spaylater. Afterwards, I think it got stuck as the last payment method and the page becomes blank when I try to purchase 1 sen voucher.
u might give it a try and see if the following steps work or not
A. Perform Shopee's basic troubleshooting
1) Proceed to delete everything in your Shopping Cart
2) Clear your cache files using these steps:
iOS : Shopee apps > Me > Settings > About > Clear Cache
Android : Shopee apps > Me > Settings > Clear Cache
3) Update your Shopee App and update your Android System.
Android: Update Shopee App and go to Google Play> Android System > Update.
For PC:
1) Log out
2) Clear web cache
3) Restart browser
4) Log in back
B. After u have done the above steps, try the following
1. Add something to your shopping cart
2. Checkout & change Payment Option to ShopeePay
3. Click Place Order
4. Once the ShopeePay PIN pop-out, close the page
Now try n see if u can purchase 1 sen voucher.
Hope the above steps work for u.
I've done the steps above. even go further to uninstall and re-install the app, but still cannot pay SSPN.
I can place other orders for goods and pay other bills which I can select the payment options, just SSPN cannot.
Only SSPN which has the notice that only support certain payment channels. When I click the payment options, it just becomes blank.
Complaint for 4 days still getting the standard reply from shopee, no cure at all.