CredoEx alternatives

Transak.com worked smoothly for me initially, but I encountered an issue later on. I notified them about receiving verification codes from my bank, only to experience a failure on transak.com. I attempted transactions with two different banks and a prepaid card, but they all failed. Upon informing them, their response indicated that my bank had declined the payment due to suspected fraudulent activity on my account. They advised me to contact my bank for assistance. I emphasized to them that if this was the problem, I wouldn't be able to use any of my accounts, but that wasn't the issue. However, their response was identical to the previous one. Subsequently, they ceased to respond. Ultimately, I tried a different service, Topper, which proved to be effective for my needs.