When you sign up to Glide you are provided with your weekly quote; however, Glide bills you monthly, rather than weekly. To calculate this, Glide multiplies your weekly quote by 52 (weeks in the year) and then divides it by 12. This way, you can appropriately budget your finances as you get billed on the same day of the month, for the same amount.
Please note, you only get billed for what you have. At the start of your contract, some services may transfer over at different times, so your first payment plan or two may be slightly different. Once all services have been set up, you will be billed for a whole month for all services.
Double check your payment plan for a full breakdown of what you've been billed.