Spice Jet Airlines — refund of cancelled ticket

Sir i have booked ticket from srinagar to delhi for 11 apr 20 on the name of mahipal charan containing pnr j51s4l. Which was cancelled automatically from your end due to lock down. Now i am trying to book tct after lockdown but at the time of pay no credit sell option showing. I have mailed to spicejet but they r just telling during pay option credit cell option will show. Pls either pay in my acct or pls resolve issue. This is not fare since 01 apr i am trying to book tct but credit sell option is not available. Price hike from 1955 to 3300. What is my fault why i will pay extra due to your fault.