Trouble activating SIM for GSM 1400

Has anyone had a problem activating the Arduino sourced SIM for the GSM 1400. I have tried with various browsers and had other people check the number I have input and the response is always

"Invalid ICCID number" contact our support .

I have sent two messages to support and have not received any response.. I know Covid-19 delays!!

But I am impatient.

Thanks in advance if you have an idea let me knoq

David G.