Tata Sky — Want to block HD channels

Address:	Nainital, Uttarakhand
Website:	tatasky.in

I subscribed for tata sky on 9th nov 2015. With that I got a free package of all HD and non HD channels. And the free package expired on 9th dec 2015. I got it recharged on 8:th dec 2015. By mistake I selected a package that included HD channels also. And I am not interested in keeping HD channels. I also want to enquire that if I remove the HD channels from the 'Dhamal' pack that I activated, then will I be able to increase the duration of my package?? SO is there any way to get through this problem. waiting for a solution. TATASKY ID [protected] mob no : [protected]