I can’t help you with the answer if I do not know your phone number, what I can do is spell out the numbers from 0 to 9 and maybe that can help you.
1 - uno
2 - did
3 - tres
4 - cuatro
5 - cinco
6 - seis
7 - siete
8 - ocho
9 - nueve
Setenta y nueve dólares y noventa centavos
Does it have any choices provided?