14 Day return policy is a BIG LIE

I did an upgrade on the 7th of October Online, they delivered my phone the following day. On the 16th of Oct I cancelled my upgrade with the consultant who helped me to upgrade. He told me its fine he has logged it in because it is still in my 14 day return policy. He told me it takes 7 to 21 days for the phone to be collected by the couriers. 21 days has passed and no one has called me....Vodacom is these a tactic you guys use when some cancels a contract with you guys....delay it as long as possible?