******* suspension of lines

It's been 4 days all my 5 simcards have been locked. My lines were locked from Saturday the 29th whilst my account is up to date no owing a cent, yesterday the May debit order went through but my lines are still locked. I've been calling since Saturday and the consultants have been saying they are escalating the matter as it was a system error. Can I have my lines restored as my contracts says as long as my payments are up to date I must have no issues with lines