scallywags

I have applied for the PAYE activation code 3 times this month and have received nothing in the post. I have tried calling HMRC on different numbers, but can not get through to speak to a human!! every option I go through on the phone, tells me to go back online and closes my call!! So frustrating!! I have done the online chat which was to the wrong department, they sent through the link for the correct department, but it keeps says this online service is currently down... I have tried this every day for a week!! Can anyone help, what am I supposed to do... How do I send PAYE/rti to HMRC without this code that seems to be impossible to get? Is there another way to do this?