I called back number (03) 8676 5628 rang 3 times then goes to busy tone.

f*ck me up the ass

music only

I called back number (03) 8676 5628 was put on hold music directly but no one answered the call.

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Yep - same here except no one speaks on the other end.

Just had a missed call from this number. I have been getting multiple calls per day from various numbers so have had to put a block on my phone for all calls except those in my contact list as it was becoming a major harassment. Like previously mentioned when you block one number they change the number by 1 digit and ring again. I received 5 calls before lunch yesterday from different numbers. Don't recall completing any survey's or entering competitions so don't know where these calls are coming from. Some of them when you answer are trying to scam you into things regarding your electricity and insurance and when you tell them you don't have an account with them they hang up. Praying on the vulnerable just like the vultures they are!!!