reset code for ademco microtech/accord xpc part 2?

i have previous put a question about this,i have since emailed the manager of the alarm company about this as i did a few months ago,his response this time was it will again cost £100 to reset this code he also said we dont own the system they do so they could come and remove it,NO THEY DONT OWN ITwe payed nearly £2000 for this and i have also sent him back the email he sent me a few months ago saying that i could get any alarm company to reset it as i own the system (i keep emails like that just incase)oh that seems to have changed now to they own it, oh surprise surprise he hasnt emailed me back about the the email  he read 14 08 today,he was quick emailing back when he was asking for money ,i can not belive we have been treated like this from a large proffesional alarm company,i am horified they treat people like this and i know im not the only one there are hundreds of complaints about this firm with simular things, the guy who answed my previous question saying you can get me an unlock code but i would ow him big time how much will i ow you ,do you want paying,i dont know what else to do other than get another alarm company to do it ,one more thing this manager said the only way we would do it with no charge is if we turn it into a bells only,which is where they cancel the signaling and let the owner reset,now i may be missing something here or i may be wrong but thats what i want ,i dont know i give up thanks to anyone who takes the time to read this