We are having the same problem. Our merchant center account has been suspended with the same code. we have secure payment methods, regular properly-leading promotions. Only one thing that comes to my mind is that we have the same address and telephone number with three websites. Even though they all belong to our legit company, can google assume that as a fraudulent issue?
When You change the domain and create a.new Merchant account.
You have a new opportunity. I created about 20 accounts and 2 were active and 18 were suspended. The 20 accounts were exactly equals.
1 of those accounts lived 3 months and after ir was suspended
The other account lived about 45 days and after ir was suspended too.