I think you had known that I had an inefficient Streamyx connection in the past 2 weeks.As the technician solved the problem for me on last Thursday,I called customer service department again on Friday to close my report and wondered whether I could entitle any rebate regarding to the case.Well,the officer transferred my call to billing department and I had a positive answer there.
On Saturday,I received a call from TM Net Customer Care Support to confirm whether the problem has been solved and what my feedback is.Once replied bulks of survey,the guy told me that they would begin to process my rebate application and I will have emails when the application goes to further level.
Today,the next day of receiving the call,I caught an email from Customer Care Support.The content is as followed:
So the only thing I can do is praying for the approval of Rebate Request and then wait for the coming bill.Guys,don’t forget to ask for the rebate after closing the report next time,ok? 
Have a nice Sunday!
You will most likely get the rebate – I apply every time I have a problem that is not fixed within 2 business days. So far I have received 3 rebates out of 3.
That's a good news for me.Thanks for sharing your experience.