Starpets Top Up Payment Failed - Funds Not Added

I attempted to use the Starpets top up service yesterday in order to import funds into my account, but the payment keeps failing and I am still unable to complete the top up. Each time I try, the system shows a “payment failed” message, as seen in the attached screenshot with transaction ID 603439109. I have not yet been able to reach customer support about this problem and therefore my balance remains unusable. I am unable to use the service the way it is intended because the payment process does not go through. I request that my top up be processed successfully as soon as possible so that the funds are properly imported and I can use my account without further payment errors.