Hi Banestta! I'm so sorry we left you wondering here - unfortunately we're not able to activate SIMs here in the Support Community - if it's a brand new SIM you just want to activate to replace the current SIM on an existing line, you can use MyT-Mobile to complete that change - but in your case it sounds like you also want to re-use an older SIM, so we'd need to have you Contact Us for assistance, if you haven't reached out already. Best wishes and hope you had a wonderful holiday - please let us know if you need any more help!
Need our help? Contact us.