I've removed some of the non-working numbers for Alpha Telecom. What follows is a list of all the numbers we have, those that were removed are crossed out.

• Customer services: Menu for customer care, new customer and those wishing to leave.
  0845 320 0004
  0845 085 0250
  020 7905 8160
  0800 279 3150
• Dial through
  020 8010 3333
  020 7891 1833
  020 7477 2183
  0800 910 3333
  0800 279 1833
  1833
• Sales
  020 7905 8160
  0800 910 3000
  0800 279 6738
• Top-up via Quick Pay
  020 7579 0770
  0800 018 5177

All these defunct numbers give network busy tone from my BT line.

I've listed the 0800 sales number for customer services; there is an option for enquiries from existing customers.