This sh!t happens to me as well.

I own a xpax number for few years, but I just reload and kept the number active, hardly make outgoing calls, only meant for incoming only.

Until certain period where I started to notice why my credit getting lesser despite on my usage pattern.

Only I realise is because of those culprit services which I didn't even subscribe!!!

Went to complain directly at Celcom service centre, I think around 3 times, still the same thing repeating...

I think I will MNP to other Telco once my 2 years validity is finish...

Not really, it took me 4 months and 3 skmm reports for the sms and mms to stop coming and eating up my money