REPORTING OF FAULTY PHONE DURING LOCK DOWN

During August 2019 I took out a new contract from yourself and got the Samsung phone - colour Blue - SM-A305F - ***. In March, just after lock down started, the screen got black and I could not turn it on again - it is not cracked. As you are aware I could not take it back while in lock down (I am in Kathu). When lock down was lifted there were still measurements in place - minimum staff and very long queues. By the way we called many times during lock down to report this but your lines were non existent which we understand as everybody worked with minimum staff. This however is not helping me as I want my rights as per the CPA and will prefer a replacement in stead of a repair. But now to get to my real problem. The queues are so long you will stand there for the whole day, so how do I start the process by giving the phone, still under guarantee in for repairs? I am currently without a phone and this phone is under guarantee. The reason for this Hellopeter is to put it on record that I did report it in time for the guarantee to be honored. Any advise on how to speed this up as I will still be waiting in line when the guarantee expires.