Fedex International Priority - Still no estimated time of delivery after 7 Business Days

Its been a week now since I shipped my international priority package, the destination is the USA and a birthday gift to my Mother whom I cannot see for the first time on her birthday due to the pandemic. I am however extremely very disappointed because to date I still don't have an estimated delivery date and despite SEVERAL calls to customer service, their answer is " THEY CAN'T SAY" every time I call! In other words, they just DONT CARE!!! It will get there when it gets there! I am hopeless and heartbroken that might not get my mom's gift to her on time. And FedEx does not seem to care at all- Express Priority means NOTHING to FedEx it's just a fluke!!!