The harm index

Every complaint our classifier reads is graded 1–3 for severity: a minor annoyance, a significant failure, or severe harm — money lost, an essential service cut off, or a problem left unresolved for months. Ranked below by the share of a company’s complaints that reached the severe grade (minimum 30 classified complaints). This measures how bad the reported problems were, not how many there were.

#	Company	Severe share	Severe	Complaints	Top reported issue
1	Card Saver	78%	43	55	Contract term changes
2	Capita	77%	186	241	Support unreachable
3	TheTravelMakers.co.uk	77%	75	98	Misleading pricing
4	FareObuddy	75%	41	55	Misleading pricing
5	G.B.C	74%	87	117	Support unreachable
6	Vivint Solar	72%	29	40	Support unreachable
7	Enstroga UK	72%	42	58	Billing errors
8	Faye Travel Insurance	70%	83	119	Warranty disputes
9	Flyer Club	69%	29	42	Misleading pricing
10	Uphold	68%	103	151	Account/app problems
11	Holborn Assets	68%	102	151	Other
12	AeroLeads	67%	26	39	Other
13	Paylaterr	66%	345	523	Support unreachable
14	FIFACOIN (now M8X)	65%	28	43	Account/app problems
15	HFM	65%	55	85	Support unhelpful
16	viagogo	64%	273	427	Support unhelpful
17	Bluevine	64%	167	262	Account/app problems
18	Insite Energy	62%	35	56	Support unhelpful
19	Americor	62%	41	66	Support unhelpful
20	17TRACK	62%	76	123	Delivery failed
21	Skylux Travel	62%	69	112	Support unhelpful
22	Allpowers	61%	30	49	Faulty product
23	StubHub International	61%	88	144	Delivery failed
24	RentalCover.com	60%	81	134	Support unreachable
25	Emedgroup	60%	61	101	Missed appointments
26	Pawp	60%	140	233	Warranty disputes
27	wamo	60%	51	85	Account/app problems
28	Trust Deed Scotland	60%	21	35	Support unhelpful
29	Freedom Mortgage	60%	40	67	Support unhelpful
30	SecureDataRecovery.com	60%	34	57	Overcharging
31	IONOS \| ionos.de	59%	30	51	Support unhelpful
32	transfergo.com	58%	45	77	Support unhelpful
33	Heatable	57%	50	87	Support unhelpful
34	TXU Energy	57%	35	61	Support unhelpful
35	After.com	57%	21	37	Support unreachable
36	Acorn Property Group	57%	17	30	Support unreachable
37	Priory	56%	36	64	Other
38	HostGator	56%	59	105	Support unhelpful
39	Startline Motor Finance	56%	64	114	Support unhelpful
40	hosting.com	55%	71	129	Support unhelpful
41	Travel Center	55%	50	91	Support unhelpful
42	IONOS \| ionos.fr	55%	23	42	Support unhelpful
43	MailerLite	55%	59	108	Account/app problems
44	Gateway - Everything Property	54%	93	171	Overcharging
45	Fortray Global Services Limited	54%	19	35	Misleading pricing
46	NetCredit	54%	57	105	Other
47	Altery	54%	19	35	Account/app problems
48	Seven Corners	54%	76	140	Warranty disputes
49	TranslateSwift	54%	73	135	Misleading pricing
50	Active.com	54%	34	63	Subscription trap
51	Peninsula UK	54%	37	69	Support unhelpful
52	Shutterstock	54%	53	99	Hard to cancel
53	W1TTY	54%	38	71	Support unreachable
54	Oleaia	53%	23	43	Refund refused
55	DreamHost	53%	62	116	Support unhelpful
56	HostPapa	53%	33	62	Support unhelpful
57	Memoria Direct Cremation & Funerals	53%	33	62	Support unhelpful
58	Carter's	53%	50	94	Delivery failed
59	Sellvia	53%	59	111	Overcharging
60	ScoresMatter	53%	43	81	Billing errors

Severity is assigned by an automated reader from the review text alone and is not a legal or financial assessment. A high share reflects the mix of problems reviewers described, not a judgment about the company’s conduct.