Sybase 365 Pty Ltd
My Mobile Telephone Bill

I noted that my bulk telephone bill from Telstra was higher than normal. I then accessed my billing details on the Internet and found that there have been a number of calls billed to my Mobile Telephone. (Total Value $55.25). This value was apparently billed by the Sybase 365 Pty Ltd..
1st December 6 calls to their number 19901800 MT.
8th December 3 Calls
15th December 3 Calls.
First call value was .25c all other calls $5.00.
I have never heard of this company, I certainly have never called this number and will certainly NOT pay this amount from my Bill.
Please contact this person and tell them to delete all entries from their Accounts which they are apparently using Illegally to bill myself.
Your help in this matter would be most appreciated.