Incorrect data deduction

After being a loyal client for over 10 years, it is sad to say that the general service from Vodacom has deteriorated drastically in recent times. I tried to phone the call centre this morning, but eventually gave up after 25 minutes of holding. I then posted my query on your Facebook page around 10am, but I see the post have since been removed with no response what so ever! I can't attach a photo here, but the Vodacom app shows my recurring balances as follows: Smart L, 500MB of 500MB available, expiring on 31 March 2016. Smart L, 188.31MB of 500MB available, expiring 30 April and Service provider Incentive, 0MB of 1024MB available, expiring 31 March. Why is data from the April allocation being used prior to the current month? Also note, if your poor service does not change any time soon, I will NOT be renewing my contract.