Hello InnesMcc
Sorry to hear of the confusion caused by the additional charges to your first bill for activation and delivery, we understand the confusion this can cause and appreciate you raising it via the forums.
If these are due to an account change or a change of package, a new contract would have been sent to you, this will indicate what was chargeable and what wasn't. Can you check this and see if it was free activation and delivery?
In regards to the loss of service credit, these are generated automatically, more details on this process can be found here for complete loss of services over 48 hours in duration.
Rob