Going through every pillar to post to cancel contract

After ordering a device for LTE WIFI, i went through the wording and realised it has a fair usage policy that may affect me. I decided to cancel the order before delivery, i called the customer service and they put me through to retentions which put me back to customer service and they put me back to retentions and they again transfer me back to customer service. Am i not happy that I have cancel before entering into any contract with them - that was pathetic and lack of understanding of internal business protocols.