Royal Mail Economy is a shipping method provided by "zhong wai yun" logistic company and Royal Mail. This service is faster than China Post Ordinary packet, but you can not get the full tracking info from the internet.
Your package will be transit to London by air, after that RM24 will be responsible for the delivery job within England.
How fast is "Royal Mail Economy"?
1. Normal condition: 10-15days
How to track "Royal Mail Economy" package?
1. Enter your number in Royal Mail Economy tracking site.
2. Check yanwen tracking site
Ps. Royal Mail Economy is only available for goods under 2 kg.