I purchased Allegiant Airlines flight BBNKB7 last night at 6:30 pm CST. I received an email this morning at 8:17 with discount code 84WIPPF OFFERING $20.00 off of a booking for travel between July 12 - Sept. 30, 2021. My reservation is for Sept. 13 - Sept. 20, qualifying it for the discount. I have tried eight times, starting immediately after receiving email this morning to contact Allegiant. The customer service number has continuously given a busy signal. I cannot find any other way to contact Allegiant, so have become very frustrated. I would like to have the discount applied. Thank you.