**********, poor service

On 8/3/2015 I bought 500mb of Night Express data. Received a sms confirming it would be valid until 8/4/2015. After 5 days received another sms saying the bundle will expire in 48 hour and it did. This was the second time this happened. Each time I lost at least 200mb of data. I phoned 808, 1555 on 15/3/2015 and after 45 minutes no agent was able to assist me. Send an e mail on 16/3/2015 to Customercare . Received a answer that does not make sense. ***. Send sms to 44303. They refunded me 300mb data. I again logged a complaint on 17/3/2015 asking what about the rest of my data that I paid for , but was lost and also if the problem is solved. ***. A week later, no response. I am to afraid to buy data and loose it again and then have to go through this whole process to get back what I paid for. This is very very poor service from Mtn. It looks like they are steeling back the data that people buy. So disappointed in them.I am a client of them for at least 16 years. This is poor Client Service