Rentals and plans are charged in advance, but usage is charged for the previous month in arrears.
Part Period Charges/Credits are generated when a plan is switched part way through the month.
We will credit you for the remainder of the month for the old plan (as you paid that in advance) and we will charge you for the remainder of the month for the cost of the new plan.
On this example the customer changed from a GSY Smart125 to the Smart Starter 2017 on 12th July.
On his August bill we have refunded the July period (12th-31st July) for the GSY Smart 125 that was paid for in advance on the previous bill.
We then charged him for the Smart Starter from 12th – 31st July.
On this occasion, as he downgraded, he ended up with a credit, but if you upgrade you will see it as a charge.
We also charged him the full current month's rental for his new Smart Starter plan, shown under the Rental Summary section;
The credit or debit for the part period charges/credits is shown on the summary of the bill under “other charges”* along with “rental charges”;
*Other charges can also include payment processing fees if you did not pay by direct debit last month, or a paper bill charge for sending out the bill in the post this month, engineer visits, late payments fees etc. Details of this charge are found further down the bill under ACCOUNT BASED CHARGES.