Renewal, renewal

I went on the app, and saw that I had been offered a good renewal deal. I accepted and got the contract through soon after. Then, I kept getting further renewal offers, so I contacted the chat section. She told me that my contract had not been 'signed off', but offered me something similar. Again, I got the contract through, but the renewal offers kept coming. So this time I phoned. Again, I accepted an offer, got the contract through, but my app is still saying 'contract up for renewal', and sending me further offers. Has anyone else had this problem?