No loyalty to Customer

Vodacom should treat their customers with respect and compassion. I have been a customer for 12 years plus.& My account in all that time has never been more than R500 monthly for my laptop. In Jan the acc was extremely high I was unaware of this, as part of a contract Vodacom should offer the service of sms the customer to inform them that the acc is higher than usual so we are aware of the cost and can then stop using it , not wait until it is R8400 .Then when we phone to discuss this and tell them that the phone belongs to a student who does not have that sort of money and cannot pay it immediately, we then ask to please put a payment plan in place so that the acc can be paid off, they refused and after sending us an sms telling us that the acc will be blocked if it is not paid in 5 days they block it after 3 days. They say that we can only have 2 months I begged in tears if they could please give us more time as we do not have the money now and the laptop is part of a contract with 2 other phones and we cannot have them blocked due to business use. They refused and said that they would completely block the phone. The 2 month is still not up but phones are blocked.