Your $11.65 invoice (WB6FMDCI-0005) covers real usage from Jul 13-29, mostly memory at $16.10, before your services were stopped. That usage accrued while your services were still running during that billing window. The earlier invoice of $16.30 (WB6FMDCI-0004) failed due to insufficient funds on Jul 13, which triggered your subscription cancellation. Paying the later invoice settled that balance but did not reactivate your plan, which is why your account now shows "Trial expired / Free." You also still have the $16.30 invoice open. To continue using Railway, clear any remaining balance and resubscribe from your workspace's plans page.

This is still not clear, if then what is this past bill, for this bill and the previous which you have already seen i paid the hobby fee of 5.00usd so why did other fees acrrue against the two bills this wasnt what was charged to me on my dashboard. explain this

then also how can i cut down memory usage

The $5 Hobby fee is not a flat cap, it covers your first $5 of resource usage each month and anything above that is billed as overage. On invoice WB6FMDCI-0004, your actual resource usage totaled $11.30 (memory $6.17, Agent Usage $4.88, plus small vCPU/network/disk charges), and after subtracting the $5 included credit, $11.30 remained due, on top of the $5 plan fee. Invoice WB6FMDCI-0005 is the same structure with memory alone at $16.10. That first invoice (WB6FMDCI-0004) is still open and unpaid at $11.30 - once you clear it, you can resubscribe from your workspace's plans page to get your services back online. To reduce memory costs, you can set a usage hard limit from your workspace's usage settings to cap your spending each cycle.