Some of free VPS clients may get alert "Clickatell: ERR: 128, Number delisted" after sending free VPS confirmation SMS code. This alert is shown for free clients with delisted phone numbers. The number could be delisted, this often happens where the USA or other country carriers delisted a number and all it requires is for a number to be listed again.
Please contact your phone number provider for more details or use another phone number for free VPS order confirmation.
If you need VPS without SMS confirmation, please upgrade to paid plan.