ITIN number not recieved, should we file tax return with new W7 form?

I and my wife firstly filed tax return on 2018 fiscal year. I have SSN, but she is not qualified for SSN. So we filed tax return manually by mailing 1040 form along with W7 form. We got tax return to our bank account, but haven't get ITIN number so far. We called IRS on 03 12 2020, and they told us they will mail us a new ITIN letter in 2 weeks, but we haven't got this yet (it has been already more than one month since then). It is very confusing that there is no way to call IRS again, due to the COVID19 lockdown. Should we file tax return with new W7 form this year? Or just wait for IRS's ITIN letter? Thanks!