Buggy APP and Website login.

I am finding the APP and the website very frustrating,  loging in is very addhoc might work, more often does not.  I am more likely to get access via the web page,  If I try changing my email address it sends a link to the email to validate,  the email is received,  click on the link and it declares that the email is not valid !    From the APP forgotten password does not work !   The APP continually reports that the email or password is not valid,  then locks you out after 5 tries.  I am only using Smarty for data which is occasional use but if the buggy APP and website is not sorted I will be moving networks when this months data runs out.