Username must contain only letters and numbers and must start with a letter. It has to be at least 4 letters long. It isn't case sensitive.

Password must contain only letters and numbers and must start with a letter. It has to be at least 8 letters long

Birthday should be input YY/MM/DDDD

Por favor ingresar los caracteres como están mostradas arribas.
Los carácteres no distinguen mayúsculas de minúsculas