Oh all right then, I could have written "assuming that the visa is indeed a multiple entry visa". Probably I ought to have hyphenated "multiple" and "entry", since they constitute a single adjectival sense consisting of two words (one of which happens to be a true adjective and the other a noun working as an attributive adjective).

For goodness' sake. (Note the apostrophe after "goodness" too - it's genitive.)