Lycamobile, a telecoms company that has given more than £2m to the Conservative party, has been issued with a winding-up petition by HM Revenue and Customs, amid a long-running VAT dispute.
The company, founded by businessman Allirajah Subaskaran in 2006, sells pay-as-you-go sim cards that are popular with low-paid workers wanting to make cheap phone calls to family overseas, as well as in the UK.
