Delhivery — Im complaining about the late pickup of my pack

My package from Mumbai was scheduled to be picked up by delhivery on the 25th if January but it’s been two days that it shows that the pickup is pending. I asked my seller to send me a picture of my package and they send me and thru the label there I got my awb number. The awb tracking shows “pending pickup” since 2days while the order number is being shown invalid. I was unsuccessful in getting a response from my seller after they send me the pic of my package and told me that the courier partner picked up the package right in front of them. I kindly request you to look into this case with utmost importance!