Where are the repair centers around Limpopo, Polokwane? I have Samsung Care+ premium for my S24 Ultra but I am struggling to know the correct center for repairs.

Samsung must fix USSD code looping error blocking all functions.. forcing me restart phone after looping for an 20 minutes??? Cmon!.. I tolerate that on my Note20 then S21 again on my brand new S24 Ultra.. fix this mess!! It annoys me