In the United States, the only customer service phone number for customer support is 
1-844-789-0099 Contact Coinmama support at 1-844-789-0099 to get any problems you're having with your Coinmama wallet fixed.
1-844-789-0099 Contact Coinmama support at 1-844-789-0099 to get any problems you're having with your Coinmama wallet fixed.