I ve lost my activation code

[AnthonyS5812]

There are only 15 digits on my sim how do I activate ?

[dalyer]

See here:

https://community.48.ie/t5/The-Knowledgebase/Getting-Started-How-to-Activate-your-48-SIM/ta-p/53099/...

I lost my activation code? 

If you've lost your 6 character activation code then you can enter the long number thats on the back of your SIM. You'll just need to add these 5 digits first 89353. So, if your SIM number is 1110001234567 then add 89353 meaning you'll enter 893531110001234567. 

Hope this helps.