Questrade TFSA margin power interest rate

I just noticed these features on Questrade! Does this mean that QT pays (4.5%) interest for holding un-invested cash on Margin account?
Any thoughts, experience?

Here is the quote:

"10.0 INTEREST ON MARGIN
Interest incurs on Clients' overnight debit or credit balance, and is charged or credited to equities and Options Accounts midmonth. The following rates apply on overnight balances. Please note that these rates are subject to change without notice. For more information, please contact a Questrade Client services specialist at 416.227.9876 or toll-free at 1.888.783.7866.

Credit (Payable to client on cash balance)
Under $250,000CAD prime -4.5% CAD prime -4.5% USD prime -5.25% USD prime -6%1
$250,000 +CAD prime -4% CAD prime -4.5% USD prime -4.75% USD prime -6%1

Note:
Clients will be charged interest if the accrued amount owing is $1.00 or more for the month.

Margin accounts will earn interest if the accrued amount owing is $10.00 or more for the month.

Registered accounts will earn interest if the accrued amount owing is $0.01 or more for the month.

Balances are calculated using the average daily debit/credit balance for the interest period.

The minimum rate for credit is 0.00%. Questrade will never charge interest for carrying a balance."

florenntina wrote: ↑ Does this mean that QT pays (4.5%) interest for holding un-invested cash on Margin account?

Nope... They give you prime rate minus 4.5%. Current prime is 2.45%, so that would be -2.05%.
Fortunately they floor it a 0%, meaning they would not charge you for holding cash. This is what they mean in the last sentence: "Questrade will never charge interest for carrying a balance."