Well but every telco has its T&C. The problem is nobody would like to fully read the T&C when it comes to signing up an agreement etc.

This is truly system issue and system definitely autobar once it detect there is an overdue amount. But I am sure if the amount is RM3 like what you said, they will truly consider to unbar your line.

You can't expect the staff to check on million of a/c everyday to manually bar a line. Please be considerate and be fair even though i know Maxis at times really disappointing. I too have some issue with them but it is very important to check before complaining. Their hotline is working 24/7. Just give them a call.