Very bad customer service

I had a very bad customer service at Woolworths CEnturion Mal on the 7/3 i went 2 their customer services 2 get assistance with my gift voucher which was a gift 4 my baby shower as i'm 9mnth pregnant n had no feedback by friday the 11/3 then i went back and the OPS manager JEff MAluleka promised 2 resolve the matter n said he will call me back. I went back yestrday the 14/3 n still nothing was done, everytime i ask 4 the store manager RAnjan NAidoo i'm always told told that he or she is not at the store. I will b givin birth this saturday n need 2 use that voucher but all i do is 2 waste my petrol n my time n stand the 4 feedback in my condition n always come back without being help. Their customer service department is very bad.THe lady by name of Ann tries her best 2 assist when i'm the n call managers but no 1 come 2 assist.