Check eligibility on one of services - 

https://www.simobilecom.com/imei-service/t-mobile-usa-clean-blocked-unpaid-status---pro

https://www.simobilecom.com/imei-service/t-mobile-usa-generic-simlock--amp--unlock-eligibility-status---pro

You can unbar imei on this service - 
https://www.simobilecom.com/imei-service/t-mobile-usa-imei-cleaning---unbarring-service---lost-stolen

Delivery Time 15-30 days

Supported IMEIs:

✅ CLEAN

✅ FINANCED

✅ NOT ACTIVATED

Supported CARRIER / POLICY

Carrier: US T-Mobile Locked Policy

Carrier: US MetroPC˜S  Locked Policy

US T-MOBILE | SPRINT  (MVNO) Locked Policy

Not Supported

Carrier: US Reseller Flex Policy Country

Carrier: US GSM Service Policy

❌ Unpaid Payments

❌ LOST

❌ STOLEN

❌ FRAUD

❌ BLOCKED

GMSA BLACKLISTED 

WRONG CARRIER or POLICY => NO REFUND