How much is the USPS postage rates for a 2KG package sending from London to Birmingham?

As an AI language model, I don't have real-time access to the最新の配送会社やその運送料金に関する情報. Postage rates can vary based on several factors such as the weight and dimensions of the package, the class of mail service selected, and any applicable surcharges or discounts.

Additionally, the postal rates are subject to change over time, so the current postage rates may differ from what they were at the time of my knowledge cutoff in September 2021.

For the most accurate and up-to-date information on postage rates, I recommend visiting the official website of the specific postal service or carrier you're interested in, such as the Royal Mail in the United Kingdom. They usually provide detailed information about their shipping services and the associated costs.