The Belgium international is close to a £9million move to White Hart Lane following talks with chairman Daniel Levy on Monday, but is growing frustrated as the deal drags on.
"I've said repeatedly that Tottenham are my first choice, but the talks haven't progressed," said Vertonghen.
"They have shown me around, I have met all their key people and their chairman came to meet me on Monday. But Arsenal want me too. They remain a possibility if my Spurs move falls through, as Ajax are asking £12m for me.
"That is a lot of money for someone with just a year left on his contract.
"I'm sure Spurs won't be able to pay that much after they missed out on the Champions League.
"Ajax want to get as much as they can for me, while Spurs want to pay as little as possible. I hope a deal can be done. But I won't fight with Ajax - that is the last thing I'd want after so many good years with them.
"England is my preferred destination. But if needed I will see out my contract and leave on a free transfer next year."