Dear Felix
I would like to thank you for your order of [PRODUCT (S), ex. 4 Magna flux compressors].
Unfortunately, however, the [DISCONTINUED PRODUCT, ex. Magna flux compressor] is no longer available. [PROPOSED ALTERNATIVE, INCLUDING ITS FEATURES AND PRICE ex. It has been superseded by the new Flux Metric compressor, which features double the capacity of the Magna flux. At $1,260, the Flux Metric is well worth the extra $60 in price as it is designed to last longer without regular and costly maintenance bills.] {I have taken the liberty of enclosing [ENCLOSURES, ex. a brochure of the new Flux Metric compressor, including schematics and customer testimonials].}
Allow me to apologize for any inconveniences this may have caused you. I am ready, however, to upgrade your order immediately to the [ALTERNATIVE PRODUCT, ex. Flux Metric] at your request. You may reach me at XXX-XX-XX.
Regards
Lydia