Change "advise" (verb) to "advice" (noun).
I am still not confident with my knowledge of grammar and have decided to do an online course. Both Cambridge and Cactus have courses available, as I don't want to waste my money I was wondering if anyone has any experience one, or better both of them?
I'm leaning towards Cactus though it's the more expensive of the two.
Any advise would be great!
The Cambridge CELTA is widely recognised as a reputable initial training certificate., as is the Trinity Cert TESOL. Any institution offering courses leading to these qualifications is monitored by Cambridge or Trinity. If Cactus offer courses leading to these qualifications, then they will have been approved by the validating body (Cambridge or Trinity).
If Cactus are offering their own teaching certificate, then you need to be aware that many schools rate Cambridge and Trinity certificates rather more highly those than awarded by other bodies,
I did a survey of job adverts and the Cambridge CELTA was the only one that was accepted by 100% of advertisers. Some purists rate the Trinity course as better, but nothing has the acceptance of the CELTA. (I have no conflict of interests to declare in this.)
I, personally, prefer the Trinity course, but have to admit that the CELTA is better known. If only one qualification is mentioned as being required, it is CELTA.