Merchants Program Guide shows what the merchant is responsible for when it comes to Account Maintenace:
11.1 Change of Settle Account Number.
11.2 Change in Your Legal Nme or Structure
11.3 Change in Company DBA Name, Addres or Telephone/Facsimile Number
11.4 Other Change(s) in Merchant Profile
11.5 Charges for Changes to Account Maintenace
Please see attachment page 13 Section 11 for more details.