You're supposed to pay your ISP. The services you use are supposed to pay their ISP:s. The ISP:s that interconnect are supposed to agree on payment for created

You're supposed to pay your ISP. The services you use are supposed to pay their ISP:s. The ISP:s that interconnect are supposed to agree on payment for created load via peering agreements in between them. Your ISP is not supposed to both ask you, the other ISP and also the client of the other ISP, your subscription service, for money, independent of actual load.