how to submit a reimbursment

I'm logged in but I can't find a tab that will allow me to submit a reimbursement for YM camp expenses

Has your clerk allowed your calling to see your budget and submit reimbursement requests?

Note that only organization presidency members (including the secretary) can submit reimbursements requests in LCR. Other members don't have the option but should pass their requests to the appropriate presidency. Bishopric members can't submit requests either (although they can enter expenses directly)

If you are a member of an organization presidency then you should be able to follow Finance > Budget on the LCR menu and then there should be a Payment Request tab for submitting requests.