I have applied for a new Sunrise contract per 1. May (Sunrise Q) and would like to know if I need to cancel my existing Sunrise contract right now (2 months notice period) or if I need to do that after the activation of the new contract.
I currently have Sunrise 2 customer numbers (one for each contract) and furthermore I have a few more months to go on the existing contract (a penalty for early cancellation will apply).