Problem with addon domain

The major disadvantage of using a low cost webhosting provider is that the level of technical competence will be less. In one case, the addon domain walletshopping was added to the account. After some time, the admin decided to change the IP address. In the new webhosting account, the domain walletshopping was not visible to the domain investor.
However when the domain investor tried to add the domain in the list of addon domain names, an error was observed, which the hosting provider could not trouble shoot quickly.
After raising support ticket, the problem was finally resolved, however, it adversely affected the indexing of the domain name walletshopping.
Finally webhosting had to be changed.