TOPK USB C Fast Charger Cable, [2Pack 2M] Nylon Braided, USB A to Type C - £3.56 with voucher sold by TOPKDirect @ Amazon

In case you missed this when it was on sale last time. Works out as £1.78 for a 2m long cable with 56KΩ resistor.
I think the QC 3.0 should work with this, however my 3A cable is from another brand.

• [3A Fast Charging] The built-in superconducting copper wire achieve safe and true 5V/3A output. Because charge your device at super fast speed, it only takes 1 hour to go from 0 to 60% power. Amazing!!! [Fast Charging Tips:1. Your Power Adapter must support QC3.0 . 2. Your Phone must support Fast Charging.]
• [Fast Data Sync]Provide transfer speed up to 480Mbps (USB 2.0) , so you can transfer content like 1GB movies, music, documents or whole photo library within 30 seconds.
• [Longer Life]The materials of aluminum shell, nylon braided and 250d fiber core, prevent the cable from fraying and splitting. The cable has passed withstanding more than 15,000 pcs 90 degree bends test. The strong 22/28AWG tinned copper core has multiple layers of shielding, to provide a smooth fast charging current without disturbance.
• [Safe and Stable Charging] The cable made by the integrated overheat protection chip and the prevent overcurrent 56KΩ resistor. It intelligently matches the required current and reduces heat. Double-sided USB-C connectors with hard rubber ends are designed for frequent insertions and tight connections without disconnecting.
• [Universal Compatibility]Works perfectly for devices with a USB-C port(Laptops excluded). You will get 2 pcs high quality nylon braided USB-A to USB-C 2.0 cables (2 Meters), 3 years warranty and our friendly customer service.

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