Gelinimol.com Rejects Debit Card Payments for In-App Coin Purchases

I am trying to purchase coins from the popular section on Gelinimol.com, but despite entering my card details completely, the transaction returns a "payment failed" error every time. The card I am using is a debit card, not a credit card, and I want to pay with this card, but the system does not allow it.

I tried again today just a moment ago and encountered the exact same error. Since I could not find a customer service phone number on the site, I am unable to reach anyone or learn why this issue is occurring.

I request that a solution be provided so I can pay with my debit card, or that clear and explicit information regarding accepted payment methods be made available, and that this issue be investigated and resolved as soon as possible.