Poor service

So on the 20/10/2017 I bought a name pendant, and the sales consultant promises I'll get it within 21 days. After completion of the 21 days as promised no one makes contact with me in regarding to why it's not there yet. I go into the store and have my details probably like 3 times while visiting the store and they keep on making promises to say they will come back to me and they don't. I have to waste my airtime my petrol to get in contact with them. According to TFG account when you don't make a payment they quick to charge you for sms and calls and now me as the client can't do anything about but complain continuously. Then I received a call after a few days where the manager tells me I have to wait another 2 weeks this is really unacceptable coz when the client does not pay account on time the quick to call and put the clients account in arrears. The manager go and tell me that it's impossible to get within this week but can't also give any explanation on why it is impossible. I paid a deposit of R450 as they said that I had to pay and the rest I have to give on collection. I DONT WANT TO WAIT 2 WEEKS THIS IS NOT ON!!!

I want answers to what is happening coz this is poor service that I'm receiving from American Swiss (TFG group)