How to check my CSP Tier?

If you are selling to customers directly, you are a Tier-1 CSP.  You are a Tier-2 CSP if you are selling CSP licenses to resellers who sell those to customers. You can also see your CSP tier and status in the partner center. Just click the link below and log in with your organization account. 

https://partner.microsoft.com/en-us/pcv/accountsettings/partnerprofile