I'm copying from a different post where they were refused the supervisa because they did not pay the fee, although online it clearly states no fee is required for exempt visa nationals.. so my question is what should I do! I've applied for my mums supervisa and did not pay the fee and worried that she will get a refusal 
COPIED FROM ELSEWHERE I applied for a supervisa application for his father last year. After waiting 11 months, it has been rejectedon the basis that the application fee was not paid. My husband recalls that during the online application process, the fee came up as $0 but the application was able to submitted online. We can't find any specific information about the supervisa fee for British nationals and want to ask if any BE members remember if they paid $100 or if they didn't have to pay any application fee? On the IRCC's website (sorry I can't post the URL as I'm a new member), we can see from the guidance posted for their staff that the visa-exempt foreign nationals are not required to pay the fee. We thought that British nationals are normally visa-exempt foreign nationals? The guidance says:
Visa-exempt foreign nationals: Applicants must submit the regular IMM 5257 visa application form, but are not required to pay the fee. If the officer is satisfied that the foreign national meets the requirements for a super visa, they should issue a letter of introduction (valid for 5 years or until passport expiry) and direct the client to apply for an electronic travel authorization (eTA), if applicable.
In principle, an applicant who is refused a super visa can still apply for the V-1 TRV or an eTA if they meet the applicable legislative requirements.

COPIED FROM ELSEWHERE I applied for a supervisa application for his father last year. After waiting 11 months, it has been rejectedon the basis that the application fee was not paid. My husband recalls that during the online application process, the fee came up as $0 but the application was able to submitted online. We can't find any specific information about the supervisa fee for British nationals and want to ask if any BE members remember if they paid $100 or if they didn't have to pay any application fee? On the IRCC's website (sorry I can't post the URL as I'm a new member), we can see from the guidance posted for their staff that the visa-exempt foreign nationals are not required to pay the fee. We thought that British nationals are normally visa-exempt foreign nationals? The guidance says:
Visa-exempt foreign nationals: Applicants must submit the regular IMM 5257 visa application form, but are not required to pay the fee. If the officer is satisfied that the foreign national meets the requirements for a super visa, they should issue a letter of introduction (valid for 5 years or until passport expiry) and direct the client to apply for an electronic travel authorization (eTA), if applicable.
- Fee exemption code: 999
In principle, an applicant who is refused a super visa can still apply for the V-1 TRV or an eTA if they meet the applicable legislative requirements.