My sandbox account is not properly configured with merchant account credentials and hence I am not able to process online payments. How can I resolve this issue?

I also tried to reach merchant account chat support but I never got connected with anyone even after waiting for more than 3 hours.

Good morning, @sparkleptic. Thanks for reaching out to the Community.

I want to ensure that you get the best support. Rest assured, to give you the best assistance, I recommend reaching out to our Merchant Services Support. You can either start a chat or give them a call. They have tools and resources that can look into your account further and see how to resolve the error.

I'm going to provide you a few links that may be helpful to you:

• Contact Information for Merchant Services
• Support Hours and Types
• Manage your Merchant Services account

Let me know how the conversation goes. I'm always here if you need anything else. Have a beautiful day!