Hello, I have just created a listing but when I got to the end of registration, I have received that the listing is suspended. What could be the problem and what should I do to rectify the problem?
there is a wide range of possible reasons to get a listing suspended.
Nobody can tell you any conrete reason without any concrete information about the suspended listing.
Have you filed an appeal already:
The best thing to do would be to file an appeal to our team to request that your listing be reinstated. This will connect you directly with the team who can lift your suspension. file an appeal: https://support.google.com/business/troubleshooter/2690129?p=reinstatement_request&rd=1
Helmut Geissler, Google My Business Top Contributor | my G+ profile