I had bought the Mobile Internet on Hotlink, 350MB/month for few times now. I only use Whatsapp and nothing else. Just lately, the 350MB data was used up even when I am not using whatsapp or internet. The data just got used up like that without any application or internet running.

I called up the Hotlink Customer Service to lodge a complaint and they suggested that I watched video and Youtube and the data will be used up very quickly. I told them off and said I did not visit these sites. I suggested someone is stealing the data and asked them to put in case for me. So they put in a case for me and asked me to wait 3-5 days for a response. After waiting for a day, I again figured out 10MB of data was gone again without me using the phone. I then called Hotlink to expedite.

On the same evening, I received a call from Hotlink and the lady on the line told me they cannot check on it and couldn't do anything about. She suggested (again) that I may have watched video on Youtube that used up all the data. She couldn't wait to put down the phone as I expressed my disappointment on this matter.

Has anybody encountered this problem? Your data being used up when you don't use the internet at all? I may consider paying a visit to Hotlink to see the manager there.

What other data plans are there on the market that users can have access on the information(data) that have been used? Some sort of tracking. I'm planning to boycott Hotlink for this shit service I have encountered lately.

I am using Symbian. Data usage is irrelevant as no application is running.

My phone doesn't have any apps that you claim are responsible for using up the data. The data was intact with all the same apps previously, and just lately the data was used up.

Since the above is speculation unless proven otherwise, you may choose to reword your sentence to "The data MAY NOT be stolen, it is your phone background that MAY be sending the data...". Since you are not the phone user and you do not have any idea what apps are on my phone, all suppositions are based on your instincts and pure guessing.