Inability to activate SIM + 0 reponse from 808

Wednesday 15 April received an upgraded LTE SIM via courier which could not be activated. Thursday went to MTN Pinelands branch for help. Eventually had to supply new SIM which was only activated on Monday 20. Had many tries to contact 808 each time ending with a dead signal. Also ordered a new Samsung S6 on Thursday 17. Was told that it would be available early the next week (20th). On Thursday 23 it was still not available. Went to Canal Walk to get my S4 repaired. Managed to get new S6 at Mtn Canal Walk. Friday SIM not working, Went to Pinelands branch to cancel my order and report about SIM. Was told that it may take 48 hours. Tried *** - same as 808! Saturday 09:00 went to Pinelands, logged call to network. 11:30 still not working. Waited over 60 mins while agent tried to contact network. Went to Customer Care centre, Canal Walk, logged another call, waited 2 hours, still not working. Sunday 26, repeat performance at Customer Care Centre, another call logged - told that I acted too late on Saturday, will only receive help on Tuesday! I have been a loyal Mtn customer for about 15 years!