Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hello, as long as you are using Teams with a personal account, even if you have to pay for a subscription, you would not see collaboration features such as creating teams and channels. You need to sign up for a business subscription instead in this case. You need at least teams essential license, or Microsoft 365 business basic, standard or premium. Note, the premium here is the business 365 premium, not the personal account 365 premium.
if you do sign up for the business plan, it will have you create a new username that ends with onmicrosoft.com. Make sure you write that down because that's your user credential to log into Teams after that. And the subscription will be managed via this link https://admin.microsoft.com.