Data owed to me

I have had a contract with i-smart mobile for to years of which my contract ended end of July. I then discovered that i did not receive my data for two months which i paid for and is still waiting for it, I have been calling them since the 1st of August and have been promised that i would get a call when they load my 1gig data, They apparently made contact with Vodacom who is suppose to send my data. My point is my debit order went of religiously and on time yet im the one waiting on my data.This is unacceptable as i spoke to the Supervisor who said she will contact me as well as Vodacom in finding out what the delay was and that i was on the list to receive my 1 gig data. Today is the 22 August and im still waiting for that call as well as my data. I will never take out a contract with I-smart again if this is the service or rather the after service that i receive. Its as if they are saying my contract is done so they don`t need to bother about my query yet i paid for my contract every single month without fail. I would like feedback asap. Im done with excuses!