Bad client service

Today I am a very unhappy client I went Sunday to vodacom shop in cape gate to upgrade to Samsung 5 note and my points was 700 so they told me that I have to pay the balance of 700 but I arrange with the accounts department to pay the end of the month. So I went to pay the outstanding amount on 16 Nov in the morning when I went to cape gate vodacom shop in the afternoon to upgrade they told me that my point fall from 700 to 400 and that I can't upgrade now I did feel humiliat and very disappointed in vodacom. The thing is why my phone was pd late I did phone vodacom serval times of why my bill is so high and even send patricia jack a few emails. I want to continue with my contract by vodacom but if this is the way I am treaded I will take my contract over to another network. I realy need for upgrade my phone cause of all the use its not working so well anymore. I also did phone accounts department and they sent me a sms that my account is so far 2900 +- I don't understand why cause I can't went over my data cause I downloaded data manager. I would like to upgrade before 19 Nov and that my status will be correct on my account before Friday other wise a will cancel my contract