30% off mobile phone for UK customers

Scammer number: (44) 020 8158 3142
Scammer website: Unknown
Fake service they are refunding: 30% of UK mobile phone customers
Any other scammer information: They blocked me after I started to troll them by calling them banchots, chutya, etc and they started raging. They wanted to text me a PIN to my mobile but I started calling them scammers in Kolkutta and they raged.