Dependent on the category of LTVP that you succeed for, you have to appeal at a suitable location because various authorities are in charge of handling the appeal for Long Term Visit Pass.
If you meet the requirements for the LTVP provided by the ICA: To conform an appeal for a Long-Term Visit Pass, you require a Singapore national or permanent resident who has a SingPass account. They help as a sponsor and appeal to SingPass. You have to compensate for a S$30 non-returnable processing charge via a legal credit or debit card (Visa or MasterCard, AMEX credit card or Internet Direct Debit). After that, you have to hold for the LTVP to be handled, which usually takes around six weeks. Throughout this period, the ICA may communicate with you and your sponsor for additional documents or invite you to appear in an interview.
If you meet the requirements for the LTVP provided by the MOM: If you are an overseas employee who is in Singapore with an EP or S Pass, you cannot appeal for your household members’ LTVP yourself. As an alternative, your company or chosen employment agency (EA) has to lodge the appeal on behalf of you at EP Online (accessible at MOM’s web portal). Then they have to submit the needed documents and compensate a processing Fee of S$105. They should submit an appeal for each household member separately. The request is generally handled within three weeks. If the application is approved, your family members will get an IPA letter that can be used to enter Singapore. After your household member travels to Singapore, you have to appeal for their LTVP together, via EP Online. You should pay an additional charge of S$225 for each of the Passes. You will get a notice letter, which permits your household member to travel in and out of Singapore while the Pass Card is being processed. It also grips info on whether they require to get their photo and fingerprints taken.