Bad service and a rude consultant

I registered for E-Classroom which I believe is a good platfom. I am struggling to get worksheet for certain topics (rates, exchange rates, percentages, simple interest, hire purchase) for a Grade 8 learner. I then sent an online email to them for help. I then received a call from a lady who did not assist me but keeps on telling me the mistake I make in my search. I told her that for Grade 8 i checked the topic but cannot find it her answer is that if it is not there then they do not have it. I then asked her to check on my behalf incase I am missing something. Instead of giving me an answer she resorts to being defensive. The subscription is very reasonable but it is not worth it if I will be contacted by someone who chooses to be rude to me. If they do not assist people to show them where they can get the work then they should tell me as a client instead of the lady being rude. I am very furious and my day has been spoiled. She keeps on telling me that I am looking in the wrong place, Grade 10 but I checked on the search button and it could only pick up Grade 10. The thing is, even if I checked on the wrong place, surely their support service should be able to asssist and tell us where we can get the correct information.