Many thanks for your patience. As you may have guessed your rights are somewhat limited and I will explain why exactly below.
First of all when it comes to requesting holidays the law allows you to make a request to take any days off, but at the same time the employer has a legal right to reject that request. All that is required is the correct notice from both sides. The notice you must give them to make the request is at least twice as long as they holiday to be taken. So if you wanted to take 10 days off work, you must make the request to book that off at least 20 days before you are due to go. If you do not give them the minimum notice they can reject the request outright.
Even if you gave them the correct notice, they are legally entitled to reject it by giving you notice which is at least as long as the holiday requested. So in the same example they can reject it by telling you at least 10 days before it is due to be taken. This right is unconditional.
If they had rejected it by exercising this right and you still went ahead and too it that would amount to unauthorised absence from work and they can sack you for it. You would not be able to challenge this because you are not protected against unfair dismissal in the first 2 years of employment.
So from all angles your rights are quite limited I am afraid so you have to find a way that best fits in with your employer’s rights, which in this case means taking just a week’s holiday.
I'm sorry if this is not necessarily the answer you were hoping for, however I do have a duty to be honest and explain the law as it actually stands. This does mean delivering bad news from time to time. I hope you understand and would be happy to provide any further clarification if needed. If you are still satisfied with the level of service you have received I would be grateful if you could please take a second to leave a positive rating by selecting 3, 4 or 5 starts at the top of the page. Thank you