Ordered a septic tank drain and now told our 1/3 HP pump is non functional and it's $950 to replace? Can I verify this myself?

My wife and I weren't home at the time. This is the message they left us

" so i inspected the float switches on your pump and it does appear that your pump is non functioning, it is a 1/3 horse power pump which i have on my truck right now and they go for $950, it is your option if you would like me to replace it or not but get back to me on your decision or contact the office please and thank you"

The pump is 950 The evaluation to diagnose that is 125 The pumping out is 300

We haven't noticed any odd smells or water pooling or any signs of a pump failure. We just want to make sure we aren't being taken advantage of. They told us also not to do laundry until it's replaced as it's almost full. We got it pumped last year this month and it's just the 2 of us. Is there anyway I can verify this myself or should I seek another opinion?